import { ReactWidget } from '@jupyterlab/apputils';

// import React, { useState } from 'react';
import React from 'react';

import * as echarts from 'echarts';

/**
 * A Counter Lumino Widget that wraps a CounterComponent.
 */
export class CounterWidget extends ReactWidget {
  /**
   * Constructs a new CounterWidget.
   */
  componentDidMount() {
    // 基于准备好的dom，初始化echarts实例
    console.log('mounted!');
    var myChart = echarts.init(document.getElementById('main-div-echarts'));
    // 绘制图表
    myChart.setOption({
      title: { text: 'ECharts 入门示例' },
      tooltip: {},
      xAxis: {
        data: ["衬衫", "羊毛衫", "雪纺衫", "裤子", "高跟鞋", "袜子"]
      },
      yAxis: {},
      series: [{
        name: '销量',
        type: 'bar',
        data: [5, 20, 36, 10, 10, 20]
      }]
    });
  }
  constructor() {
    super();
    this.addClass('jp-ReactWidget');
  }

  render(): JSX.Element {

    return (
      <div>

        <div id="main-div-echarts" style={{ width: 400, height: 400 }}></div>
        <button
          onClick={(): void => {
            console.log('aaaaaaaaaa');
            this.componentDidMount();
          }}
        >
          Press Me for Increment!
      </button>
      </div>
    );

    // return <CounterComponent />;
    // return <button>asasdasdasd</button>
  }
}